SB2021072799 - Transmission of Private Resources into a New Sphere ('Resource Leak') in Discourse

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2021072799

SB2021072799 - Transmission of Private Resources into a New Sphere ('Resource Leak') in Discourse

Published: July 27, 2021 Updated: July 1, 2026

Security Bulletin ID SB2021072799
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Transmission of Private Resources into a New Sphere ('Resource Leak') (CVE-ID: CVE-2021-32788)

CWE-ID: CWE-402 - Transmission of Private Resources into a New Sphere ('Resource Leak')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote user to disclose sensitive information.

The vulnerability exists due to transmission of private resources into a new sphere in whisper post handling when processing personal messages and post stream state changes. A remote user can participate in a personal message or observe topic metadata after deletion of the last post to disclose sensitive information.

Non-staff participants can learn the creator of a whisper post even though the whisper content itself is not visible to them.


Remediation

Install update from vendor's website.

References